X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=common%2Ffdt_support.c;h=724452d754523a39f4a57fce208a80ae49cea2bd;hb=23b4cf32b7ed9e2cd35638878d7c9ccd7537c7ba;hp=ccad16facf7cf126dd24ad068bfe7038ee663b4a;hpb=52d825cc7b9d50f286cdbd026733bb15e81d3c66;p=people%2Fms%2Fu-boot.git diff --git a/common/fdt_support.c b/common/fdt_support.c index ccad16facf..724452d754 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -131,18 +131,6 @@ static int fdt_fixup_stdout(void *fdt, int chosenoff) OF_STDOUT_PATH, strlen(OF_STDOUT_PATH) + 1); } #elif defined(CONFIG_OF_STDOUT_VIA_ALIAS) && defined(CONFIG_CONS_INDEX) -static void fdt_fill_multisername(char *sername, size_t maxlen) -{ - const char *outname = stdio_devices[stdout]->name; - - if (strcmp(outname, "serial") > 0) - strncpy(sername, outname, maxlen); - - /* eserial? */ - if (strcmp(outname + 1, "serial") > 0) - strncpy(sername, outname + 1, maxlen); -} - static int fdt_fixup_stdout(void *fdt, int chosenoff) { int err; @@ -152,9 +140,7 @@ static int fdt_fixup_stdout(void *fdt, int chosenoff) int len; char tmp[256]; /* long enough */ - fdt_fill_multisername(sername, sizeof(sername) - 1); - if (!sername[0]) - sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1); + sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1); aliasoff = fdt_path_offset(fdt, "/aliases"); if (aliasoff < 0) { @@ -211,7 +197,7 @@ int fdt_root(void *fdt) return err; } - serial = getenv("serial#"); + serial = env_get("serial#"); if (serial) { err = fdt_setprop(fdt, 0, "serial-number", serial, strlen(serial) + 1); @@ -303,7 +289,7 @@ int fdt_chosen(void *fdt) if (nodeoffset < 0) return nodeoffset; - str = getenv("bootargs"); + str = env_get("bootargs"); if (str) { err = fdt_setprop(fdt, nodeoffset, "bootargs", str, strlen(str) + 1); @@ -395,6 +381,7 @@ void do_fixup_by_compat_u32(void *fdt, const char *compat, do_fixup_by_compat(fdt, compat, prop, &tmp, 4, create); } +#ifdef CONFIG_ARCH_FIXUP_FDT_MEMORY /* * fdt_pack_reg - pack address and size array into the "reg"-suitable stream */ @@ -423,6 +410,45 @@ static int fdt_pack_reg(const void *fdt, void *buf, u64 *address, u64 *size, return p - (char *)buf; } +int fdt_record_loadable(void *blob, u32 index, const char *name, + uintptr_t load_addr, u32 size, uintptr_t entry_point, + const char *type, const char *os) +{ + int err, node; + + err = fdt_check_header(blob); + if (err < 0) { + printf("%s: %s\n", __func__, fdt_strerror(err)); + return err; + } + + /* find or create "/fit-images" node */ + node = fdt_find_or_add_subnode(blob, 0, "fit-images"); + if (node < 0) + return node; + + /* find or create "/fit-images/" node */ + node = fdt_find_or_add_subnode(blob, node, name); + if (node < 0) + return node; + + /* + * We record these as 32bit entities, possibly truncating addresses. + * However, spl_fit.c is not 64bit safe either: i.e. we should not + * have an issue here. + */ + fdt_setprop_u32(blob, node, "load-addr", load_addr); + if (entry_point != -1) + fdt_setprop_u32(blob, node, "entry-point", entry_point); + fdt_setprop_u32(blob, node, "size", size); + if (type) + fdt_setprop_string(blob, node, "type", type); + if (os) + fdt_setprop_string(blob, node, "os", os); + + return node; +} + #ifdef CONFIG_NR_DRAM_BANKS #define MEMORY_BANKS_MAX CONFIG_NR_DRAM_BANKS #else @@ -473,6 +499,7 @@ int fdt_fixup_memory_banks(void *blob, u64 start[], u64 size[], int banks) } return 0; } +#endif int fdt_fixup_memory(void *blob, u64 start, u64 size) { @@ -481,43 +508,84 @@ int fdt_fixup_memory(void *blob, u64 start, u64 size) void fdt_fixup_ethernet(void *fdt) { - int node, i, j; - char enet[16], *tmp, *end; + int i = 0, j, prop; + char *tmp, *end; char mac[16]; const char *path; - unsigned char mac_addr[6]; + unsigned char mac_addr[ARP_HLEN]; + int offset; +#ifdef FDT_SEQ_MACADDR_FROM_ENV + int nodeoff; + const struct fdt_property *fdt_prop; +#endif - node = fdt_path_offset(fdt, "/aliases"); - if (node < 0) + if (fdt_path_offset(fdt, "/aliases") < 0) return; - i = 0; - strcpy(mac, "ethaddr"); - while ((tmp = getenv(mac)) != NULL) { - sprintf(enet, "ethernet%d", i); - path = fdt_getprop(fdt, node, enet, NULL); - if (!path) { - debug("No alias for %s\n", enet); - sprintf(mac, "eth%daddr", ++i); - continue; - } + /* Cycle through all aliases */ + for (prop = 0; ; prop++) { + const char *name; - for (j = 0; j < 6; j++) { - mac_addr[j] = tmp ? simple_strtoul(tmp, &end, 16) : 0; - if (tmp) - tmp = (*end) ? end+1 : end; - } + /* FDT might have been edited, recompute the offset */ + offset = fdt_first_property_offset(fdt, + fdt_path_offset(fdt, "/aliases")); + /* Select property number 'prop' */ + for (j = 0; j < prop; j++) + offset = fdt_next_property_offset(fdt, offset); - do_fixup_by_path(fdt, path, "mac-address", &mac_addr, 6, 0); - do_fixup_by_path(fdt, path, "local-mac-address", - &mac_addr, 6, 1); + if (offset < 0) + break; - sprintf(mac, "eth%daddr", ++i); + path = fdt_getprop_by_offset(fdt, offset, &name, NULL); + if (!strncmp(name, "ethernet", 8)) { + /* Treat plain "ethernet" same as "ethernet0". */ + if (!strcmp(name, "ethernet") +#ifdef FDT_SEQ_MACADDR_FROM_ENV + || !strcmp(name, "ethernet0") +#endif + ) + i = 0; +#ifndef FDT_SEQ_MACADDR_FROM_ENV + else + i = trailing_strtol(name); +#endif + if (i != -1) { + if (i == 0) + strcpy(mac, "ethaddr"); + else + sprintf(mac, "eth%daddr", i); + } else { + continue; + } +#ifdef FDT_SEQ_MACADDR_FROM_ENV + nodeoff = fdt_path_offset(fdt, path); + fdt_prop = fdt_get_property(fdt, nodeoff, "status", + NULL); + if (fdt_prop && !strcmp(fdt_prop->data, "disabled")) + continue; + i++; +#endif + tmp = env_get(mac); + if (!tmp) + continue; + + for (j = 0; j < 6; j++) { + mac_addr[j] = tmp ? + simple_strtoul(tmp, &end, 16) : 0; + if (tmp) + tmp = (*end) ? end + 1 : end; + } + + do_fixup_by_path(fdt, path, "mac-address", + &mac_addr, 6, 0); + do_fixup_by_path(fdt, path, "local-mac-address", + &mac_addr, 6, 1); + } } } /* Resize the fdt to its actual size + a bit of padding */ -int fdt_shrink_to_minimum(void *blob) +int fdt_shrink_to_minimum(void *blob, uint extrasize) { int i; uint64_t addr, size; @@ -545,6 +613,7 @@ int fdt_shrink_to_minimum(void *blob) actualsize = fdt_off_dt_strings(blob) + fdt_size_dt_strings(blob) + 5 * sizeof(struct fdt_reserve_entry); + actualsize += extrasize; /* Make it so the fdt ends on a page boundary */ actualsize = ALIGN(actualsize + ((uintptr_t)blob & 0xfff), 0x1000); actualsize = actualsize - ((uintptr_t)blob & 0xfff); @@ -629,84 +698,6 @@ int fdt_pci_dma_ranges(void *blob, int phb_off, struct pci_controller *hose) { } #endif -#ifdef CONFIG_FDT_FIXUP_NOR_FLASH_SIZE -/* - * Provide a weak default function to return the flash bank size. - * There might be multiple non-identical flash chips connected to one - * chip-select, so we need to pass an index as well. - */ -u32 __flash_get_bank_size(int cs, int idx) -{ - extern flash_info_t flash_info[]; - - /* - * As default, a simple 1:1 mapping is provided. Boards with - * a different mapping need to supply a board specific mapping - * routine. - */ - return flash_info[cs].size; -} -u32 flash_get_bank_size(int cs, int idx) - __attribute__((weak, alias("__flash_get_bank_size"))); - -/* - * This function can be used to update the size in the "reg" property - * of all NOR FLASH device nodes. This is necessary for boards with - * non-fixed NOR FLASH sizes. - */ -int fdt_fixup_nor_flash_size(void *blob) -{ - char compat[][16] = { "cfi-flash", "jedec-flash" }; - int off; - int len; - struct fdt_property *prop; - u32 *reg, *reg2; - int i; - - for (i = 0; i < 2; i++) { - off = fdt_node_offset_by_compatible(blob, -1, compat[i]); - while (off != -FDT_ERR_NOTFOUND) { - int idx; - - /* - * Found one compatible node, so fixup the size - * int its reg properties - */ - prop = fdt_get_property_w(blob, off, "reg", &len); - if (prop) { - int tuple_size = 3 * sizeof(reg); - - /* - * There might be multiple reg-tuples, - * so loop through them all - */ - reg = reg2 = (u32 *)&prop->data[0]; - for (idx = 0; idx < (len / tuple_size); idx++) { - /* - * Update size in reg property - */ - reg[2] = flash_get_bank_size(reg[0], - idx); - - /* - * Point to next reg tuple - */ - reg += 3; - } - - fdt_setprop(blob, off, "reg", reg2, len); - } - - /* Move to next compatible node */ - off = fdt_node_offset_by_compatible(blob, off, - compat[i]); - } - } - - return 0; -} -#endif - int fdt_increase_size(void *fdt, int add_len) { int newlen; @@ -894,14 +885,9 @@ void fdt_fixup_mtdparts(void *blob, void *node_info, int node_info_size) { struct node_info *ni = node_info; struct mtd_device *dev; - char *parts; int i, idx; int noff; - parts = getenv("mtdparts"); - if (!parts) - return; - if (mtdparts_init() != 0) return; @@ -958,11 +944,41 @@ static void of_dump_addr(const char *s, const fdt32_t *addr, int na) static void of_dump_addr(const char *s, const fdt32_t *addr, int na) { } #endif -/* Callbacks for bus specific translators */ +/** + * struct of_bus - Callbacks for bus specific translators + * @name: A string used to identify this bus in debug output. + * @addresses: The name of the DT property from which addresses are + * to be read, typically "reg". + * @match: Return non-zero if the node whose parent is at + * parentoffset in the FDT blob corresponds to a bus + * of this type, otherwise return zero. If NULL a match + * is assumed. + * @count_cells:Count how many cells (be32 values) a node whose parent + * is at parentoffset in the FDT blob will require to + * represent its address (written to *addrc) & size + * (written to *sizec). + * @map: Map the address addr from the address space of this + * bus to that of its parent, making use of the ranges + * read from DT to an array at range. na and ns are the + * number of cells (be32 values) used to hold and address + * or size, respectively, for this bus. pna is the number + * of cells used to hold an address for the parent bus. + * Returns the address in the address space of the parent + * bus. + * @translate: Update the value of the address cells at addr within an + * FDT by adding offset to it. na specifies the number of + * cells used to hold the address being translated. Returns + * zero on success, non-zero on error. + * + * Each bus type will include a struct of_bus in the of_busses array, + * providing implementations of some or all of the functions used to + * match the bus & handle address translation for its children. + */ struct of_bus { const char *name; const char *addresses; - void (*count_cells)(void *blob, int parentoffset, + int (*match)(const void *blob, int parentoffset); + void (*count_cells)(const void *blob, int parentoffset, int *addrc, int *sizec); u64 (*map)(fdt32_t *addr, const fdt32_t *range, int na, int ns, int pna); @@ -970,7 +986,7 @@ struct of_bus { }; /* Default translator (generic bus) */ -void of_bus_default_count_cells(void *blob, int parentoffset, +void fdt_support_default_count_cells(const void *blob, int parentoffset, int *addrc, int *sizec) { const fdt32_t *prop; @@ -992,9 +1008,9 @@ static u64 of_bus_default_map(fdt32_t *addr, const fdt32_t *range, { u64 cp, s, da; - cp = of_read_number(range, na); - s = of_read_number(range + na + pna, ns); - da = of_read_number(addr, na); + cp = fdt_read_number(range, na); + s = fdt_read_number(range + na + pna, ns); + da = fdt_read_number(addr, na); debug("OF: default map, cp=%" PRIu64 ", s=%" PRIu64 ", da=%" PRIu64 "\n", cp, s, da); @@ -1006,7 +1022,7 @@ static u64 of_bus_default_map(fdt32_t *addr, const fdt32_t *range, static int of_bus_default_translate(fdt32_t *addr, u64 offset, int na) { - u64 a = of_read_number(addr, na); + u64 a = fdt_read_number(addr, na); memset(addr, 0, na * 4); a += offset; if (na > 1) @@ -1016,19 +1032,103 @@ static int of_bus_default_translate(fdt32_t *addr, u64 offset, int na) return 0; } +#ifdef CONFIG_OF_ISA_BUS + +/* ISA bus translator */ +static int of_bus_isa_match(const void *blob, int parentoffset) +{ + const char *name; + + name = fdt_get_name(blob, parentoffset, NULL); + if (!name) + return 0; + + return !strcmp(name, "isa"); +} + +static void of_bus_isa_count_cells(const void *blob, int parentoffset, + int *addrc, int *sizec) +{ + if (addrc) + *addrc = 2; + if (sizec) + *sizec = 1; +} + +static u64 of_bus_isa_map(fdt32_t *addr, const fdt32_t *range, + int na, int ns, int pna) +{ + u64 cp, s, da; + + /* Check address type match */ + if ((addr[0] ^ range[0]) & cpu_to_be32(1)) + return OF_BAD_ADDR; + + cp = fdt_read_number(range + 1, na - 1); + s = fdt_read_number(range + na + pna, ns); + da = fdt_read_number(addr + 1, na - 1); + + debug("OF: ISA map, cp=%" PRIu64 ", s=%" PRIu64 + ", da=%" PRIu64 "\n", cp, s, da); + + if (da < cp || da >= (cp + s)) + return OF_BAD_ADDR; + return da - cp; +} + +static int of_bus_isa_translate(fdt32_t *addr, u64 offset, int na) +{ + return of_bus_default_translate(addr + 1, offset, na - 1); +} + +#endif /* CONFIG_OF_ISA_BUS */ + /* Array of bus specific translators */ static struct of_bus of_busses[] = { +#ifdef CONFIG_OF_ISA_BUS + /* ISA */ + { + .name = "isa", + .addresses = "reg", + .match = of_bus_isa_match, + .count_cells = of_bus_isa_count_cells, + .map = of_bus_isa_map, + .translate = of_bus_isa_translate, + }, +#endif /* CONFIG_OF_ISA_BUS */ /* Default */ { .name = "default", .addresses = "reg", - .count_cells = of_bus_default_count_cells, + .count_cells = fdt_support_default_count_cells, .map = of_bus_default_map, .translate = of_bus_default_translate, }, }; -static int of_translate_one(void * blob, int parent, struct of_bus *bus, +static struct of_bus *of_match_bus(const void *blob, int parentoffset) +{ + struct of_bus *bus; + + if (ARRAY_SIZE(of_busses) == 1) + return of_busses; + + for (bus = of_busses; bus; bus++) { + if (!bus->match || bus->match(blob, parentoffset)) + return bus; + } + + /* + * We should always have matched the default bus at least, since + * it has a NULL match field. If we didn't then it somehow isn't + * in the of_busses array or something equally catastrophic has + * gone wrong. + */ + assert(0); + return NULL; +} + +static int of_translate_one(const void *blob, int parent, struct of_bus *bus, struct of_bus *pbus, fdt32_t *addr, int na, int ns, int pna, const char *rprop) { @@ -1051,7 +1151,7 @@ static int of_translate_one(void * blob, int parent, struct of_bus *bus, */ ranges = fdt_getprop(blob, parent, rprop, &rlen); if (ranges == NULL || rlen == 0) { - offset = of_read_number(addr, na); + offset = fdt_read_number(addr, na); memset(addr, 0, pna * 4); debug("OF: no ranges, 1:1 translation\n"); goto finish; @@ -1091,8 +1191,8 @@ static int of_translate_one(void * blob, int parent, struct of_bus *bus, * that can be mapped to a cpu physical address). This is not really specified * that way, but this is traditionally the way IBM at least do things */ -static u64 __of_translate_address(void *blob, int node_offset, const fdt32_t *in_addr, - const char *rprop) +static u64 __of_translate_address(const void *blob, int node_offset, + const fdt32_t *in_addr, const char *rprop) { int parent; struct of_bus *bus, *pbus; @@ -1107,7 +1207,7 @@ static u64 __of_translate_address(void *blob, int node_offset, const fdt32_t *in parent = fdt_parent_offset(blob, node_offset); if (parent < 0) goto bail; - bus = &of_busses[0]; + bus = of_match_bus(blob, parent); /* Cound address cells & copy address locally */ bus->count_cells(blob, parent, &na, &ns); @@ -1131,12 +1231,12 @@ static u64 __of_translate_address(void *blob, int node_offset, const fdt32_t *in /* If root, we have finished */ if (parent < 0) { debug("OF: reached root node\n"); - result = of_read_number(addr, na); + result = fdt_read_number(addr, na); break; } /* Get new parent bus and counts */ - pbus = &of_busses[0]; + pbus = of_match_bus(blob, parent); pbus->count_cells(blob, parent, &pna, &pns); if (!OF_CHECK_COUNTS(pna, pns)) { printf("%s: Bad cell count for %s\n", __FUNCTION__, @@ -1164,7 +1264,8 @@ static u64 __of_translate_address(void *blob, int node_offset, const fdt32_t *in return result; } -u64 fdt_translate_address(void *blob, int node_offset, const fdt32_t *in_addr) +u64 fdt_translate_address(const void *blob, int node_offset, + const fdt32_t *in_addr) { return __of_translate_address(blob, node_offset, in_addr, "ranges"); } @@ -1416,17 +1517,14 @@ int fdt_verify_alias_address(void *fdt, int anode, const char *alias, u64 addr) /* * Returns the base address of an SOC or PCI node */ -u64 fdt_get_base_address(void *fdt, int node) +u64 fdt_get_base_address(const void *fdt, int node) { int size; - u32 naddr; const fdt32_t *prop; - naddr = fdt_address_cells(fdt, node); + prop = fdt_getprop(fdt, node, "reg", &size); - prop = fdt_getprop(fdt, node, "ranges", &size); - - return prop ? fdt_translate_address(fdt, node, prop + naddr) : 0; + return prop ? fdt_translate_address(fdt, node, prop) : 0; } /* @@ -1543,8 +1641,8 @@ int fdt_setup_simplefb_node(void *fdt, int node, u64 base_address, u32 width, fdt32_t cells[4]; int i, addrc, sizec, ret; - of_bus_default_count_cells(fdt, fdt_parent_offset(fdt, node), - &addrc, &sizec); + fdt_support_default_count_cells(fdt, fdt_parent_offset(fdt, node), + &addrc, &sizec); i = 0; if (addrc == 2) cells[i++] = cpu_to_fdt32(base_address >> 32); @@ -1613,3 +1711,34 @@ int fdt_fixup_display(void *blob, const char *path, const char *display) } return toff; } + +#ifdef CONFIG_OF_LIBFDT_OVERLAY +/** + * fdt_overlay_apply_verbose - Apply an overlay with verbose error reporting + * + * @fdt: ptr to device tree + * @fdto: ptr to device tree overlay + * + * Convenience function to apply an overlay and display helpful messages + * in the case of an error + */ +int fdt_overlay_apply_verbose(void *fdt, void *fdto) +{ + int err; + bool has_symbols; + + err = fdt_path_offset(fdt, "/__symbols__"); + has_symbols = err >= 0; + + err = fdt_overlay_apply(fdt, fdto); + if (err < 0) { + printf("failed on fdt_overlay_apply(): %s\n", + fdt_strerror(err)); + if (!has_symbols) { + printf("base fdt does did not have a /__symbols__ node\n"); + printf("make sure you've compiled with -@\n"); + } + } + return err; +} +#endif